DESCRIPTION
FRONT PANEL
b
HEADSET
MIC
1/8”
MIC1 and MIC2
LEVEL: Adjusts the amount of signal of the indicated Microphone channel.
PAN: Adjusts the relative level of signal from the channel to the Right/Left Output.
pwr: When lit, indicates that the MX34b is on. A dim light indicates low battery
voltage.
HEADPHONE
LEVEL: Adjusts the amount of signal from the Headphone Output.
OUTPUT: 1/8” (3.5mm) jack containing the Headphone Output signal.
REAR PANEL
INPUTS: 1 - 2: XLR balanced inputs for connection to any standard dynamic or condenser
microphone. The input circuitry has a very wide input range and can accomodate almost
any (mic to line) level signal.
AUX IN: Tip-Ring-Sleeve stereo 1/8” (3.5mm) jack for connecting to another line-level
stereo signal source.
STEREO OUT: Tip-Ring-Sleeve stereo 1/8” (3.5mm) jack for connection to a camera or
other stereo input (Line-level only).
12 VDC jack: For connection to the Rolls PS27 12VDC power supply.
POWER: Button applies power to the MX34b.
BATTERY INSTALLATION: To replace the 9 V alkaline batteries,
fi
rst carefully press in and
up on the door to release the battery compartment. It then slides out and you can replace
the battery. Remember to replace
both
batteries at
the same time.
PHANTOM POWER: The Phantom Power jump-
ers are set to the
off
position from the factory. To
engage the phantom power,
fi
rst make sure the
MX34b is
powered off
, use a pair of needle-nose
pliers or tweezers and carefully pull out the jumper
corresponding to the channel you wish to power.
Replace the jumper - connecting the two pins labeled
on
.
SCHEMATIC
2
5
